<script setup>
import { User, Lock } from '@element-plus/icons-vue'
import { ref } from 'vue'
import { ElMessage } from 'element-plus'
//控制注册与登录表单的显示， 默认显示注册
const isRegister = ref(false)
//定义数据模型
const registerData = ref({
  username: '',
  password: '',
  rePassword: '',
  stuNum:'',
  nickname:'',
  email:''
})

//校验密码的函数
const checkRePassword = (rule, value, callback) => {
  if (value === '') {
    callback(new Error('请再次确认密码'))
  } else if (value !== registerData.value.password) {
    callback(new Error('请确保两次输入的密码一样'))
  } else {
    callback()
  }
}

//定义表单校验规则
const rules = {
  username: [
    { required: true, message: '请输入用户名', trigger: 'blur' },
    { min: 5, max: 16, message: '长度为5~16位非空字符', trigger: 'blur' }
  ],
  password: [
    { required: true, message: '请输入密码', trigger: 'blur' },
    { min: 5, max: 16, message: '长度为5~16位非空字符', trigger: 'blur' }
  ],
  rePassword: [
    { validator: checkRePassword, trigger: 'blur' }
  ]
}

//调用后台接口,完成注册
import { userRegisterService, userLoginService} from '@/api/user.js'
const register = async () => {
  //registerData是一个响应式对象,如果要获取值,需要.value
  let result = await userRegisterService(registerData.value);

  ElMessage.success(result.msg ? result.msg : '注册成功')
  router.push('/')
}

//绑定数据,复用注册表单的数据模型
//表单数据校验
//登录函数
import {useTokenStore} from '@/stores/token.js'
import {useRouter} from 'vue-router'
const router = useRouter()
const tokenStore = useTokenStore();
const login =async ()=>{
  //调用接口,完成登录
  let result =  await userLoginService(registerData.value);
  isRegister.value=false;
  clearRegisterData();
  ElMessage.success(result.msg ? result.msg : '登录成功')
  //把得到的token存储到pinia中
  tokenStore.setToken(result.data)
  //跳转到首页 路由完成跳转
  router.push('/')
}

//定义函数,清空数据模型的数据
const clearRegisterData = ()=>{
  registerData.value={
    username:'',
    password:'',
    rePassword:'',
    stuNum:'',
    nickname:'',
    email:''
  }
}
</script>

<template>
  <el-row class="login-page">

    <el-col :span="6" :offset="0" class="form">
      <!-- 注册表单 -->
      <el-form ref="form" size="large" autocomplete="off" v-if="isRegister" :model="registerData" :rules="rules">
        <el-form-item>
          <h1 class="title">注册</h1>
        </el-form-item>
        <el-form-item prop="username">
          <el-input :prefix-icon="User" placeholder="请输入用户名" v-model="registerData.username"></el-input>
        </el-form-item>
        <el-form-item prop="password">
          <el-input :prefix-icon="Lock" type="password" placeholder="请输入密码"
                    v-model="registerData.password"></el-input>
        </el-form-item>
        <el-form-item prop="rePassword">
          <el-input :prefix-icon="Lock" type="password" placeholder="请输入再次密码"
                    v-model="registerData.rePassword"></el-input>
        </el-form-item>
        <el-form-item prop="stuNum">
          <el-input :prefix-icon="User" placeholder="请输入学号" v-model="registerData.stuNum"></el-input>
        </el-form-item>
        <el-form-item prop="nickname">
          <el-input :prefix-icon="User" placeholder="请输入昵称" v-model="registerData.nickname"></el-input>
        </el-form-item>
        <el-form-item prop="email">
          <el-input :prefix-icon="User" placeholder="请输入邮箱" v-model="registerData.email"></el-input>
        </el-form-item>
        <!-- 注册按钮 -->
        <el-form-item>
          <el-button class="button" type="primary" auto-insert-space @click="register">
            注册
          </el-button>
        </el-form-item>
        <el-form-item class="flex">
          <el-button class="button" type="primary" auto-insert-space @click="isRegister = false;clearRegisterData()">
            返回登录
          </el-button>
        </el-form-item>
      </el-form>
      <!-- 登录表单 -->
      <el-form ref="form" size="large" autocomplete="off" v-else :model="registerData" :rules="rules">
        <el-form-item>
          <h1 class="title">登录</h1>
        </el-form-item>
        <el-form-item prop="username">
          <el-input :prefix-icon="User" placeholder="请输入用户名" v-model="registerData.username"></el-input>
        </el-form-item>
        <el-form-item prop="password">
          <el-input name="password" :prefix-icon="Lock" type="password" placeholder="请输入密码" v-model="registerData.password"></el-input>
        </el-form-item>
        <el-form-item class="flex">
          <div class="flex">
            <el-checkbox>记住我</el-checkbox>
            <el-link type="primary" :underline="false">忘记密码？</el-link>
          </div>
        </el-form-item>
        <!-- 登录按钮 -->
        <el-form-item>
          <el-button class="button" type="primary" auto-insert-space @click="login">登录</el-button>
        </el-form-item>
        <el-form-item class="flex">
          <el-button class="button" type="primary" auto-insert-space @click="isRegister = true;clearRegisterData()">注册</el-button>
        </el-form-item>
      </el-form>
    </el-col>
  </el-row>
</template>

<style lang="scss" scoped>
/* 样式 */
.login-page {
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center; /* 垂直居中 */
  background: url('@/assets/login_bg.png') no-repeat center / cover; /* 背景图覆盖整个页面 */
  background-color: #fff; /* 如果背景图未加载则显示白色背景 */
  padding: 0;
  margin: 0;
}

.form {
  width: 600px; /* 设置登录框的宽度 */
  background-color: rgba(255, 255, 255, 0.8); /* 半透明背景，显示背景图 */
  border-radius: 10px;
  padding: 30px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center; /* 水平和垂直居中对齐表单内容 */
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  user-select: none;
}

.title {
  margin-bottom: 20px;
  font-size: 24px;
  font-weight: bold;
}

.button {
  width: 100%;
}

.flex {
  width: 100%;
  display: flex;
  justify-content: space-between;
}

/* 添加 title 类的样式 */
.title {
  width: 100%; /* 确保 h1 填充整个容器 */
  text-align: center; /* 水平居中 */
  margin-bottom: 20px;
  font-size: 24px;
  font-weight: bold;
}
</style>
